We've just added Bitcoin payment support to Poyomi, print on demand service for Photo Books and Calendars. We ship worldwide and are really focused on ease of use and low prices. Give it a try, you can get a Letter 20 page photo book for just $6.99. Use the coupon code BITCOIN for a 10% discount. You can see our current BTC exchange rate on this page (MTGox 24h average).

On the technical side of things, our site is implemented in C#/ASP.NET MVC with async processing for almost everything, including Bitcoin transactions. If anyone is interested, I can share some notes regarding integrating bitcoind with C#. We don't rely on third parties for BTC processing.

According to NIST and ECRYPT II, the cryptographic algorithms used in
Bitcoin are expected to be strong until at least 2030. (After that, it
will not be too difficult to transition to different algorithms.)Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.